This is "Unsumi," Japanese ink made by Kobaien. Made by Dochin Matsui, the founder of Kobaien, using the Keicho ancient method. Made with care by the 11th generation descendant, Genshun. Kobaien is a long-established company with over 440 years of experience dedicated to making ink, founded in Nara. Genshun, the 11th generation, 1862-1931 Served as honorary mayor of Nara City. *Size 8 x 2 x 1 cm Although it is new and unused, it has been stored at home for a long time. Please purchase only if you understand this. #Kobaien #Unsumi #JapaneseInk #Ink #Sumi #Sumie #PaulowniaBox #Shodo (Calligraphy) #Haiga (Haiku Painting) #Nihonga (Japanese Painting) #Suibokuga (Ink Wash Painting) #Sumie (Ink Painting) #Fude (Brush)